Comments (3)
halostorm
commented on July 21, 2024
- label中的the location (x_c, y_c, z_c) 对应目标的哪个点？目标中心或者像KITTI数据集那样，对应目标底面中心？还有the location (x_c, y_c, z_c) 应该就是目标坐标系的原点吧？
参考系是采集车车体系，(x_c, y_c, z_c) 是3Dbbox中心 - 目标三维尺寸包括长、宽、高，它们分别对应目标坐标系的哪个轴？长对应x轴，宽对应y轴，高对应z轴？
对的。 - alpha角是如何定义的？它是观测坐标系x轴和目标坐标系x轴的夹角吗？这个alpha角什么时候为正，什么时候为负？
x轴夹角，符号定义，正->逆时针
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russellyq
commented on July 21, 2024
@halostorm
你好，请问 theta角是顺时针为正吗
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halostorm
commented on July 21, 2024
右手坐标系，逆时针
…------------------ Original ------------------
From: russellyq ***@***.***>
Date: Tue,Jan 18,2022 2:13 PM
To: halostorm/PCAT_open_source ***@***.***>
Cc: halo ***@***.***>, Mention ***@***.***>
Subject: Re: [halostorm/PCAT_open_source] some confusions about Bbox labeldefinition (#8)
@halostorm
你好，请问 theta角是顺时针为正吗
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